So this what it looks like to make $20 BILLION in one day.

28-year-old Facebook founder Mark Zuckerberg surfaced moments ago outside his home in Palo Alto, CA — just hours after his Facebook IPO earned him an extra $20 billion — and he looked happier (and richer) than ever.

But everyone else wasn’t so lucky — Facebook’s stock was originally priced at $38 and finished the day at $38.23 … not bad, but not great either.

To put it in perspective, Google’s stock was priced at $85 during its IPO in 2004, and finished its first day at $100.34.